Steam-boiler



(No Model.)

H. SWIHART.

STEAM BOILER.

No. 369,302. Patented Aug. 30, 1887 W/T/VESSES ATTORNEY N. 957585 Phemmm n mr. Washington. D4 C.

Unrrso STATES HENRY SWIHART, OF MASSILLON, OHIO.

STEAM-BOlLER.

SPECIFICATION forming part of Letters Patent No. 369,302, dated August 30, 1887, Application filed December-30, 1886. Serial No. 223,000. (No model.)

To all whom it may concern.-

Be it known that I, HENRY SWIHARI, a citizen of the United States, residing at Massillon, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Steam-Boilers; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon, in which Figure 1 is a longitudinal section of the boiler, showing its different parts in proper adjustment. Fig. 2 is an end view looking toward the fire-box,showing door-plate removed. Fig. 3 is a detached view of asmall portion of the boiler, showing manner of attaching the water-retaining plate to the boiler proper. Fig. 4 is a view of a portion of the valve-rod, showing the handle or knob attached thereto. Fig. 5 is a view of portion of fire-box.

The present invention has relation to steamboilers designed and calculated to be used with portable or traction engines; and its nature consists of the different parts and combination of parts hereinafter described, and particularly pointed out in the claims.

Similar letters of reference indicate corresponding parts in all the figures oi the drawings.

The object of my invention is to provide steam-boilers for traction or locomotive engines,subject to ehangesin their level, that can be easily taken care of and without any danger of destroying the crown sheet by sudden changes of level.

In the accompanying drawings, A represents the boiler, which may be substantially of the form shown, or it may be of any other desired form, reference being bad to its con struetion, so as to properly attach a water-retaining plate, as hereinafter described.

The normal water-line is indicated by the heavy dotted line X, Fig. 1,when the boiler is placed or standing level. Thefire-box B is located substantially as shown in Fig. 1, and is attached to the boiler A in any suitable and convenient manner. The fire-box B is provided with the water-chambers O and D, said chambers being loeatedsubstantially as shown shown in Fi 1.

in'Fi g. 1. The partition a is located as shown in Fig. 1, and is for the purpose hereinafter described.

The water-retaining plateE is located substantially as shown in the drawings, and as shown it is adjusted a short distance above the front or forward portion of the crown-sheet F. This water-retaining plate is attached at its edges to the boiler A, as shown in Figs. 2 and 3, and is inclined forward and upward, as The top or upper edge of this water-retaining plate E is about even or level with the normal water-line X X.

Between the water-retaining plate Eand the crown-sheet F is located the valve G, said valve being operated by means of the rod H and the handle or knob I. In use this valve G is open when the boiler is moving over level ground or is standing on a level, and closed when the boiler is descending a grade or set at an angle. It will be seen that by my peculiar arrangement the water contained in the boiler is free to circulate within the entire limits of the boiler and water-chambers when the valve G is open. It will also be seen that when the valve G is closed the water cannot communicate with all the different parts of the boiler except as it flows over the top of the retainingplate E, thereby holding or damming a sufficient quantity of water to fully cover the crown-sheet F when descending grades.

For the purpose of preventing the water from leaking through below the top of the wator-retaining plate E the felt it is placed between the flanges ou the plate E and the boiler, as shown in Fig. 3.

The water is fed into the boiler A through the pipe J said pipe being located at any de sired point in the rear of the partition (1., the valve G. being open,as indicated by the dotted line, thereby offering no resistance to the flow of water to the boiler and water-chambers. The partition a is for the purpose of separating the water between the chambers O and D, and at the same time holding the water located around the fire-box in position when the engine is descending agrade. The valve-rod His held in proper position by means of a screw-thread, as shown in Fig. 4.

The valve G should be located at one side of the crown-sheet, so that water will flow into the boiler A before the crown-sheet is fully covered.

Having now fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of the boiler-shell, the water-retaining plate E, the boiler A, the felt h,- and the valve G, substantially as and for the purpose specified.

2. The combination of the boiler A,the firebox B, water-chambers O and D, the waterretaining plate E, located substantially as HENRY SNIHART.

YVitnesses:

FRED W. BOND, E. A. 0. SMITH. 

